CN111042575A - Steel structure upright post reinforcing structure and method for basement roof temporary road - Google Patents
Steel structure upright post reinforcing structure and method for basement roof temporary road Download PDFInfo
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- CN111042575A CN111042575A CN201911372097.8A CN201911372097A CN111042575A CN 111042575 A CN111042575 A CN 111042575A CN 201911372097 A CN201911372097 A CN 201911372097A CN 111042575 A CN111042575 A CN 111042575A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/04—Propping of endangered or damaged buildings or building parts, e.g. with respect to air-raid action
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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Abstract
The invention discloses a steel structure upright post reinforcing structure and method for a basement roof temporary road, which comprises the following steps: paying off and positioning a temporary road on a top plate of the basement; a plurality of pre-buried steel plates are pre-buried on a basement bottom plate; hoisting a plurality of steel structure stand columns which correspond to the embedded steel plates one by one in place, wherein each steel structure stand column is vertically erected right below a temporary road positioned on a top plate of the basement; the bottom of each steel structure upright post is welded with the corresponding embedded steel plate; the top layer board of the top welding of each steel structure stand is located the structure roof beam handing-over position of basement roof, and between the top layer board of each steel structure stand and the structure roof beam handing-over position bottom that corresponds tightly through square timber and splint top. The technology mainly solves the problem that the construction operation surface cannot be unfolded due to full-scale reinforcement of a large-area basement, and creates favorable conditions for the promotion of engineering.
Description
Technical Field
The invention belongs to the field of temporary reinforcing systems for building construction, and particularly relates to application of a steel structure upright post reinforcing mode of a temporary basement roof road in building construction.
Background
In recent years, with the continuous development of domestic economy, particularly the construction land of a big city is more and more tense, the construction land is narrow in a busy section in the center of the city, the basement sideline is more and more closely attached to the red land line, the problem that construction vehicles pass through the top plate of the basement is inevitable, and the construction load is not necessarily considered in the structural design stage.
Especially, the passing line of heavy transport vehicles such as PC members, steel members and the like is a problem which must be considered for the reinforcement of the top plate of the basement. The conventional reinforcement mode mainly adopts the mode that the formwork bent frame is reserved and not removed in the original structure construction stage as one of reinforcement modes, and the form of steel pipe bent frame is used for full reinforcement after the formwork bent frame is removed; the two modes have the problems of influencing the construction operation surface of the basement, directly influencing the quality acceptance of the basement, indirectly influencing the construction period of the whole project and sometimes even being the key problem of project propulsion.
Therefore, the problem of reinforcing the top plate of the basement of the construction project of the urban central zone is one of the problems which troubles the progress promotion of the site and increase the measure cost.
Disclosure of Invention
The invention starts with solving the problems of basement top plate reinforcement, creating a working surface for subsequent construction of a basement, saving cost and the like, develops a steel structure upright post reinforcement mode of a basement top plate temporary road, and is put into practical construction.
The invention solves the technical problems through the following technical scheme:
the invention provides a steel structure upright post reinforcing structure of a basement roof temporary road, which is characterized by comprising a plurality of pre-buried steel plates, a plurality of steel structure upright posts, square timbers and clamping plates, wherein the steel structure upright posts are in one-to-one correspondence with the pre-buried steel plates, the pre-buried steel plates are all fixed on a basement bottom plate, the steel structure upright posts are vertically erected right below a temporary road positioned on a basement roof, the bottom of each steel structure upright post is welded with the corresponding pre-buried steel plate, a top supporting plate welded at the top of each steel structure upright post is positioned at a structural beam joint part of the basement roof, and the top supporting plate of each steel structure upright post is tightly propped against the bottom of the corresponding structural beam joint part through the square tim.
Preferably, the steel structure upright post is welded by adopting angle steel and batten plates to form a steel lattice upright post form.
Preferably, angle steel adopts 14# -18 # equilateral angle steel, and the batten plate adopts 400-500 mm 300-350 mm 10-12 mm @ 600-700 standard to form a steel lattice upright post with a section of 450-550 mm.
Preferably, the embedded steel plate is a 10mm thick steel plate and four phi 12 steel bars, the top supporting plate is a 10mm thick steel plate, the square wood is 45 x 90mm, and the clamping plate is a nine-clamp plate with the thickness of 18.
Preferably, the steel structure stand is located the primary and secondary roof beam handing-over department of basement roof.
The invention also provides a steel structure upright post reinforcing method of the basement roof temporary road, which is characterized by comprising the following steps:
s1, paying off and positioning a temporary road on a top plate of the basement;
s2, pre-burying a plurality of pre-buried steel plates on a basement bottom plate;
s3, hoisting a plurality of steel structure upright posts which correspond to the embedded steel plates one by one in place, wherein each steel structure upright post is erected right below a temporary road positioned on a top plate of the basement;
s4, welding the bottoms of the steel structure stand columns with corresponding embedded steel plates;
s5, the top supporting plate welded at the top of each steel structure upright post is positioned at the joint part of the structural beam of the top plate of the basement, and the top supporting plate of each steel structure upright post is tightly supported with the bottom of the joint part of the corresponding structural beam through square timber and clamping plates.
Preferably, the steel structure upright post is welded by adopting angle steel and batten plates to form a steel lattice upright post form.
Preferably, angle steel adopts 14# -18 # equilateral angle steel, and the batten plate adopts 400-500 mm 300-350 mm 10-12 mm @ 600-700 standard to form a steel lattice upright post with a section of 450-550 mm.
Preferably, the steel lattice column is removed by the concrete support and then recycled, and is hoisted by 1 25T truck crane, the hoisting point is positioned at the upper part of the steel lattice column, and the center of the hoisting point and the center of gravity of the steel lattice column are positioned on the same vertical line, so as to ensure the verticality of the steel lattice column. The verticality deviation of the steel lattice stand column is not more than 1/200, the length deviation is less than 30mm, and the positioning deviation is less than 10 mm.
Preferably, the embedded steel plate is a 10mm thick steel plate and four phi 12 steel bars, the top supporting plate is a 10mm thick steel plate, the square wood is 45 x 90mm, and the clamping plate is a nine-clamp plate with the thickness of 18.
Preferably, in step S2, the thickness of the weld seam formed by welding the bottom of the steel structure pillar and the corresponding embedded steel plate is not less than 8 mm.
Preferably, in step S5, the thickness of the weld seam welding the top of the steel structure upright and the top support plate is not less than 8 mm.
Preferably, in step S5, the steel structural columns are located at the primary and secondary beam junction of the basement roof, so as to ensure the safety of the roof vehicle driving structure.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
aiming at the problems described in the background technology, the problem is solved well by adopting a mode of reinforcing the top plate of the basement by the steel structure upright post, the steel structure upright post can adopt a steel lattice which is vertically supported in the original foundation pit stage and also can adopt a form of fixed processing, the material can be repeatedly used, and the economic benefit is considerable; the technology mainly solves the problem that the construction operation surface cannot be unfolded due to full-scale reinforcement of a large-area basement, and creates favorable conditions for the promotion of engineering.
Drawings
Fig. 1 is a schematic view of a steel structure column reinforcing structure of a basement roof temporary road according to a preferred embodiment of the invention.
Fig. 2 is a schematic view of a steel structure column according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, this embodiment provides a steel structure stand reinforced structure of basement roof temporary road, it includes a plurality of pre-buried steel sheet 3, a plurality of steel structure stand 4 with pre-buried steel sheet 3 one-to-one, square timber 7 and splint 8, these a little pre-buried steel sheet 3 are all fixed on basement bottom plate 2, these a little steel structure stand 4 erect in basement roof 1 go out the temporary road under of location, the bottom of each steel structure stand 4 welds with the pre-buried steel sheet 3 that corresponds mutually, the top layer board 6 of the top welding of each steel structure stand 4 is located basement roof 1's structure roof handing-over position (be located basement roof 1's primary and secondary roof handing-over department like steel structure stand 4), and between the top layer board 6 of each steel structure stand 4 and the structure roof handing-over position bottom through square timber 7 and splint 8 top-tightness.
The steel structure column 4 may adopt a steel lattice of the vertical support at the original foundation pit stage, and may also adopt a form of fixed processing if the steel lattice column is formed by welding angle steel 41 and gusset plate 42.
The angle steel 41 adopts 14# -18 # equilateral angle steel, and the batten plate 42 adopts 400-500 mm multiplied by 300-350 mm multiplied by 10-12 mm @ 600-700 specification to form a steel lattice upright post with a section of 450-550 mm in size.
The embedded steel plate 3 is a 10mm thick steel plate and four phi 12 steel bars, the top supporting plate 6 is a 10mm thick steel plate, the square wood 7 is 45 multiplied by 90mm, and the clamping plate 8 is a nine-clamp plate with the thickness of 18.
The embodiment provides a steel structure upright post reinforcing method for a basement roof temporary road, which comprises the following steps:
step 101, paying off and positioning a temporary road on the top plate 1 of the basement.
102, pre-burying a plurality of pre-buried steel plates 3 on a basement bottom plate 2, wherein the pre-buried steel plates 3 are made of 10mm thick steel plates and four phi 12 steel bars.
103, hoisting a plurality of steel structure upright posts 4 which are in one-to-one correspondence with the embedded steel plates 3 in place, wherein each steel structure upright post 4 is vertically erected right below the temporary road positioned on the basement top plate 1.
The steel structure column 4 can adopt a steel lattice of the vertical support at the original foundation pit stage, for example, a steel lattice column form is formed by welding angle steel 41 and gusset plates 42, and a form of fixed processing can also be adopted.
The angle steel 41 adopts 14# -18 # equilateral angle steel, and the batten plate 42 adopts 400-500 mm multiplied by 300-350 mm multiplied by 10-12 mm @ 600-700 specification to form a steel lattice upright post with a section of 450-550 mm in size.
The verticality deviation of the steel lattice upright post 4 is not more than 1/200, the length deviation is less than 30mm, and the positioning deviation is less than 10 mm.
And step 104, welding the bottom of each steel structure stand column 4 with the corresponding embedded steel plate 3, wherein the thickness of a welding seam 5 welded between the bottom of each steel structure stand column and the corresponding embedded steel plate is not less than 8mm, and the thickness of the welding seam 5 in the embodiment is 10 mm.
And 105, the top supporting plate 6 welded to the top of each steel structure upright post 4 is located at the structural beam connection part of the basement top plate 1 (if the steel structure upright post 4 is located at the primary and secondary beam connection part of the basement top plate 1), and the top supporting plate 6 of each steel structure upright post 4 is tightly propped against the bottom of the corresponding structural beam connection part through the square timber 7 and the clamping plate 8.
Wherein, the top of steel construction stand 4 and top layer board 6 looks welded welding seam thickness is not less than 8mm, and the welding seam thickness is 10mm in this embodiment.
The top supporting plate 6 is a steel plate with the thickness of 10mm, the square wood 7 is 45 multiplied by 90mm, and the clamping plate 8 is a nine-clamping plate with the thickness of 18 mm.
The steel structure stand column 4 is dismantled by gas cutting, the falling direction is well controlled, a rubber tire is laid on the ground, and the structure is prevented from being broken by smashing when the steel structure stand column 4 falls to the ground.
The technology is implemented on the 'Senlan high bridge A2-3 construction project 2 standard (except pile foundation engineering)', and the effect is obvious.
The total floor area of the project is 16000 square meters, the area of the foundation pit is 13000 square meters, and the construction site is extremely narrow after the foundation pit is zero. Temporary roads for vehicles must be provided on the ceiling of the basement, thus facing the problem of the basement construction worktop, and also involving the cost of measures.
The traditional basement template bent frame is reserved as reinforcement of a basement roof temporary road or post reinforcement of a subsequent steel pipe bent frame is adopted, the lease cost of the steel pipe bent frame is about 20 ten thousand yuan per month, the existing steel lattice in a foundation pit stage is adopted as basement roof reinforcement materials in the project, and the material lease cost is saved by 15 ten thousand yuan per month; meanwhile, compared with the bent frame, the cost of manpower, machinery and measures for reinforcing is 5 ten thousand yuan more than that of a steel lattice; the invention can save 20 ten thousand yuan per month in the field.
The method indirectly provides a good operation space for the subsequent construction of the basement, and indirectly reduces the influence on the construction period.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (12)
1. The utility model provides a steel construction stand reinforced structure of basement roof temporary road, a serial communication port, it includes a plurality of pre-buried steel sheets, a plurality of and pre-buried steel sheet one-to-one's steel construction stand, square timber and splint, these a little pre-buried steel sheets are all fixed on the basement bottom plate, these a little steel construction stand erects under the temporary road of fixing a position out on the basement roof, the bottom of each steel construction stand welds with the pre-buried steel sheet that corresponds mutually, the top welded top layer board of each steel construction stand is located the structure roof beam handing-over position of basement roof, and between the top layer board of each steel construction stand and the structure roof beam handing-over position bottom that corresponds tightly through square timber and splint top.
2. The steel structure column reinforcing structure of the basement roof temporary road of claim 1, wherein the steel structure column is welded by angle steel and gusset plates to form a steel lattice column form.
3. The steel structure upright post reinforcement structure of the basement roof temporary road of claim 2, wherein angle steel adopts 14# -18 # equilateral angle steel, and the batten plate adopts 400-500 mm x 300-350 mm x 10-12 mm @ 600-700 specification to form a steel lattice upright post with a section of 450-550 mm in size.
4. The steel structure column reinforcing structure of the basement roof temporary road of claim 1, wherein the embedded steel plates are 10mm thick steel plates and four phi 12 steel bars, the top supporting plate is 10mm thick steel plates, the square timber is 45 x 90mm, and the clamping plates are nine 18 thick clamping plates.
5. The steel structure column reinforcing structure of the basement roof temporary road of claim 1, wherein the steel structure column is located at the joint of the primary beam and the secondary beam of the basement roof.
6. The method for reinforcing the steel structure upright post of the temporary road of the top plate of the basement is characterized by comprising the following steps of:
s1, paying off and positioning a temporary road on a top plate of the basement;
s2, pre-burying a plurality of pre-buried steel plates on a basement bottom plate;
s3, hoisting a plurality of steel structure upright posts which correspond to the embedded steel plates one by one in place, wherein each steel structure upright post is erected right below a temporary road positioned on a top plate of the basement;
s4, welding the bottoms of the steel structure stand columns with corresponding embedded steel plates;
s5, the top supporting plate welded at the top of each steel structure upright post is positioned at the joint part of the structural beam of the top plate of the basement, and the top supporting plate of each steel structure upright post is tightly supported with the bottom of the joint part of the corresponding structural beam through square timber and clamping plates.
7. The method for reinforcing the steel structure upright post of the temporary road of the top plate of the basement as claimed in claim 6, wherein the steel structure upright post is welded by adopting angle steel and gusset plates to form a steel lattice upright post form.
8. The method for reinforcing the steel structure upright post of the temporary road of the top plate of the basement as claimed in claim 7, wherein the angle steel adopts 14# -18 # equilateral angle steel, and the batten plate adopts the specification of 400-500 mm x 300-350 mm x 10-12 mm @ 600-700 mm to form the steel lattice upright post with the section of 450-550 mm.
9. The method for reinforcing steel structure columns of the temporary road for the top plate of the basement as claimed in claim 7, wherein the verticality deviation of the steel lattice columns is not more than 1/200, the length deviation is less than 30mm, and the positioning deviation is less than 10 mm.
10. The method for reinforcing the steel structure columns of the temporary road of the top plate of the basement as claimed in claim 6, wherein the embedded steel plates are 10mm thick steel plates and four phi 12 steel bars, the top supporting plate is 10mm thick steel plates, the square timber is 45 x 90mm thick, and the clamping plates are nine 18 thick clamping plates.
11. The reinforcing method of the steel structure columns of the basement roof temporary road of claim 6, wherein in step S2, the thickness of the welding seam between the bottom of each steel structure column and the corresponding embedded steel plate is not less than 8 mm; in step S5, the thickness of the welding seam between the top of the steel structure upright post and the top supporting plate is not less than 8 mm.
12. The method for reinforcing steel structural columns of the temporary road for the top plate of the basement as claimed in claim 6, wherein the steel structural columns are located at the junction of the primary and secondary beams of the top plate of the basement in step S5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911372097.8A CN111042575A (en) | 2019-12-27 | 2019-12-27 | Steel structure upright post reinforcing structure and method for basement roof temporary road |
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| CN201911372097.8A CN111042575A (en) | 2019-12-27 | 2019-12-27 | Steel structure upright post reinforcing structure and method for basement roof temporary road |
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| CN111042575A true CN111042575A (en) | 2020-04-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482043A (en) * | 2021-06-18 | 2021-10-08 | 上海二十冶建设有限公司 | Prefabricated splicing jig frame for steel truss of basement top plate and installation method of prefabricated splicing jig frame |
| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202440833U (en) * | 2012-03-06 | 2012-09-19 | 中天建设集团有限公司 | Structure for supporting construction elevator base on top plate of basement |
| CN105401741A (en) * | 2015-11-24 | 2016-03-16 | 中建钢构有限公司 | Basement roof reinforcement construction device and construction method thereof |
| CN108277818A (en) * | 2018-03-22 | 2018-07-13 | 中国电建市政建设集团有限公司 | Basement top-down method Combined tower crane foundation structure and construction method |
| CN109440922A (en) * | 2018-12-26 | 2019-03-08 | 上海建工七建集团有限公司 | Strenthening member and its application construction method for basement structure |
| CN209179535U (en) * | 2018-10-12 | 2019-07-30 | 上海建工二建集团有限公司 | Basement reinforcing and supporting structure |
-
2019
- 2019-12-27 CN CN201911372097.8A patent/CN111042575A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202440833U (en) * | 2012-03-06 | 2012-09-19 | 中天建设集团有限公司 | Structure for supporting construction elevator base on top plate of basement |
| CN105401741A (en) * | 2015-11-24 | 2016-03-16 | 中建钢构有限公司 | Basement roof reinforcement construction device and construction method thereof |
| CN108277818A (en) * | 2018-03-22 | 2018-07-13 | 中国电建市政建设集团有限公司 | Basement top-down method Combined tower crane foundation structure and construction method |
| CN209179535U (en) * | 2018-10-12 | 2019-07-30 | 上海建工二建集团有限公司 | Basement reinforcing and supporting structure |
| CN109440922A (en) * | 2018-12-26 | 2019-03-08 | 上海建工七建集团有限公司 | Strenthening member and its application construction method for basement structure |
Non-Patent Citations (6)
| Title |
|---|
| 姚良: "格构式支撑在高层人货电梯基础加固中的应用", 《安徽建筑》 * |
| 朱凯波: "地下室顶板上设置施工道路的施工技术", 《建筑施工》 * |
| 朱刚: "地下室顶板在上有压重时的加固措施及承载性能分析", 《建筑施工》 * |
| 李江: "施工道路及材料堆场处地下室顶板加固方案", 《建筑技术开发》 * |
| 百度文库: "施工电梯方案-格构柱支撑", 《百度文库-HTTPS://WENKU.BAIDU.COM/VIEW/6C89C92FF18583D0496459F9.HTML》 * |
| 顾新洪: "施工升降机基础与地下车库顶板连体施工技术", 《建筑施工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482043A (en) * | 2021-06-18 | 2021-10-08 | 上海二十冶建设有限公司 | Prefabricated splicing jig frame for steel truss of basement top plate and installation method of prefabricated splicing jig frame |
| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
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